fix(chat): 移除 compact 态模型旁的悬浮最小化球 (Project-N-E-K-O#1595)

compact 态下 #reactChatWindowMinimizeButton 被 CSS 改造成漂在猫娘模型左侧的
50px 圆 + breathingGlow 呼吸灯。观感呆，且在 Electron Pet 窗口（index.html，
仅 subtitle-web-host）里发光会被窗口 shape 裁切。

- index.css：把"按钮变球"那段样式原地换成 display:none（保留选择器作既有测试分隔符）
- app-react-chat-window.js：删球的 rAF 锚点追踪（sync/clearCompactMinimizeBallAnchor、
  compactMinimizeBallSnapshot），geometry ballRect 恒 null，不再给桌面壳留不可见球的命中区

保留最小化宿主管线：按钮 DOM、click→toggleMinimized、setMinimized、折叠动画落点
getCompactMinimizeBallTarget 全留着；schedule/stopCompactMinimizeBallTracking 是
compact surface 主 rAF 循环（非球专用），未动。compact 态最小化入口的呈现方式后续单独设计。

Co-authored-by: Hongzhi Wen <cartabio.coder1@gmail.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: 3 people

static/app-react-chat-window.js

@@ -253,7 +253,6 @@
     var mobileExpandClickGuard = null;
     var mobileExpandVisualGuardTimer = 0;
     var compactMinimizeBallFrame = 0;
-    var compactMinimizeBallSnapshot = '';
     var compactSurfaceAnchorSnapshot = '';
     var compactDesktopSurfaceAnchorSnapshot = '';
     var compactInteractionGeometrySnapshot = '';
@@ -1283,9 +1282,9 @@
         });
         var surfaceRects = surfaceItems.map(function (item) { return item.nativeRect; });
         var baseSurfaceRects = baseSurfaceItems.map(function (item) { return item.nativeRect; });
-        var ballRect = isCompactHomeMinimizeBallEnabled() && !isElectronCompactExternalBallEnabled()
-            ? normalizeCompactDomRect(getCompactMinimizeBallTarget())
-            : null;
+        // compact 态不再渲染模型旁的悬浮最小化球，故不再上报其 hit/native 区域，
+        // 避免 Electron 桌面壳为一个不可见的球保留点击区域（externalBall 仍走桌面外部球）。
+        var ballRect = null;
         return {
             mode: getCurrentChatSurfaceMode(),
             compactChatState: getCurrentCompactChatState(),
@@ -1422,47 +1421,12 @@
         syncCompactInteractionGeometry();
     }
 
-    function clearCompactMinimizeBallAnchor() {
-        var shell = getShell();
-        if (!shell) return;
-        shell.style.removeProperty('--compact-minimize-ball-left');
-        shell.style.removeProperty('--compact-minimize-ball-top');
-        compactMinimizeBallSnapshot = '';
-        syncCompactInteractionGeometry();
-    }
-
-    function syncCompactMinimizeBallAnchor() {
-        var shell = getShell();
-        if (!shell) return;
-        if (!isCompactHomeMinimizeBallEnabled()) {
-            clearCompactMinimizeBallAnchor();
-            return;
-        }
-
-        var placement = getCompactMinimizeBallTarget();
-        if (!placement) {
-            clearCompactMinimizeBallAnchor();
-            return;
-        }
-
-        var snapshot = Math.round(placement.left) + ':' + Math.round(placement.top);
-        if (snapshot === compactMinimizeBallSnapshot) {
-            return;
-        }
-
-        compactMinimizeBallSnapshot = snapshot;
-        shell.style.setProperty('--compact-minimize-ball-left', Math.round(placement.left) + 'px');
-        shell.style.setProperty('--compact-minimize-ball-top', Math.round(placement.top) + 'px');
-        syncCompactInteractionGeometry();
-    }
-
     function stopCompactMinimizeBallTracking() {
         if (compactMinimizeBallFrame) {
             window.cancelAnimationFrame(compactMinimizeBallFrame);
             compactMinimizeBallFrame = 0;
         }
         compactSurfacePendingModelOpen = false;
-        clearCompactMinimizeBallAnchor();
         clearCompactSurfaceAnchor();
     }
 
@@ -1482,13 +1446,11 @@
                 return;
             }
             syncCompactSurfaceAnchor();
-            syncCompactMinimizeBallAnchor();
             syncCompactInteractionGeometry();
             compactMinimizeBallFrame = window.requestAnimationFrame(loop);
         };
 
         syncCompactSurfaceAnchor();
-        syncCompactMinimizeBallAnchor();
         syncCompactInteractionGeometry();
         compactMinimizeBallFrame = window.requestAnimationFrame(loop);
     }

static/css/index.css

@@ -1142,45 +1142,11 @@ body.subtitle-web-host #react-chat-window-shell[data-chat-surface-mode="compact"
     pointer-events: auto;
 }
 
+/* compact 态不再把最小化按钮渲染成模型旁的悬浮球：呼吸灯外发光会被 Electron 窗口形状裁切，
+   且球漂在角色旁观感很怪。最小化的宿主管线（按钮 DOM、toggleMinimized、折叠动画）保留，
+   compact 态下的最小化入口呈现方式后续单独设计。 */
 body.subtitle-web-host #react-chat-window-shell[data-chat-surface-mode="compact"]:not(.is-minimized):not(.is-collapsing):not(.is-expanding) #reactChatWindowMinimizeButton {
-    position: fixed;
-    left: var(--compact-minimize-ball-left, 16px);
-    top: var(--compact-minimize-ball-top, calc(100vh - 84px));
-    right: auto;
-}
-
-body.subtitle-web-host #react-chat-window-shell[data-chat-surface-mode="compact"]:not(.is-minimized):not(.is-collapsing):not(.is-expanding) #reactChatWindowMinimizeButton {
-    width: 50px;
-    height: 50px;
-    display: inline-flex !important;
-    visibility: visible !important;
-    opacity: 1 !important;
-    border-radius: 50%;
-    background-color: rgba(68, 183, 254, 0.15);
-    background-image: url('/static/icons/expand_icon_off_ball.png');
-    background-position: center;
-    background-repeat: no-repeat;
-    background-size: cover;
-    box-shadow: 0 0 8px rgba(68, 183, 254, 0.6);
-    animation: breathingGlow 2s ease-in-out infinite;
-    will-change: box-shadow;
-    transform: none;
-    pointer-events: auto;
-    z-index: 100001;
-}
-
-body.electron-chat-window.subtitle-web-host #react-chat-window-shell[data-chat-surface-mode="compact"]:not(.is-minimized):not(.is-collapsing):not(.is-expanding) #reactChatWindowMinimizeButton {
-    display: none !important;
-    pointer-events: none !important;
-}
-
-body.subtitle-web-host #react-chat-window-shell[data-chat-surface-mode="compact"]:not(.is-minimized):not(.is-collapsing):not(.is-expanding) #reactChatWindowMinimizeButton:hover {
-    background-color: rgba(68, 183, 254, 0.2);
-    box-shadow: 0 0 12px rgba(68, 183, 254, 0.72);
-}
-
-body.subtitle-web-host #react-chat-window-shell[data-chat-surface-mode="compact"]:not(.is-minimized):not(.is-collapsing):not(.is-expanding) #reactChatWindowMinimizeButton img {
-    opacity: 0;
+    display: none;
 }
 
 body.subtitle-web-host #react-chat-window-shell[data-chat-surface-mode="compact"]:not(.is-minimized):not(.is-collapsing):not(.is-expanding) #react-chat-window-root .compact-chat-surface-shell {